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i have the original Firmware, no rooting. Recently, i got this issue where my s3 doesn't startup, it just keeps flashing the logo over and over again until the battery drains. I've already tried pulling the battery, wiping cache partition several times but no luck.

So is it possible to root my device without losing any data or at least can i backup from the recovery mode?

I'm an Android newbie, so i have zero background on this stuff. What am i suppose to do ?

Edit: i'm specifically asking about backing up my data, is it possible?

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  • Similar issue here: Galaxy S3 stuck on boot loop, Factory Reset didn't work. Maybe the answers there help you out?
    – Izzy
    Commented Jan 27, 2014 at 7:33
  • thanks, i've already seen it. I'm just worried about losing my data, is it possible to backup in recovery mode without rooting? Commented Jan 27, 2014 at 8:22
  • Stock recovery doesn't offer a backup option. You could try whether the device is discovered by ADB while in recovery mode. If so, you should be able to use adb backup. See our backup tag-wiki for some details.
    – Izzy
    Commented Jan 27, 2014 at 8:30
  • How were you able to back up your device? I'm having the same problem...
    – user172237
    Commented Jun 19, 2016 at 10:53

1 Answer 1

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Boot into odin mode, plug into laptop, get custom recovery and root via odin (this doesn't wipe data) then in the custom recovery do a nandroid backup then clear dalvik cache and try to boot. If this doesn't work then sorry you're gonna need to flash a custom rom or stock rom again

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  • Thanks, i installed CWM, but clearing dalvik cache didn't do any good, so i backed up my device and made a factory reset and finally my device booted and was no longer stuck at the logo. All my photos, videos and music were safe and sound, however, all my apps were gone, as well as my contacts and text mesages. I appreciate your help :). Commented Jan 28, 2014 at 17:23
  • Yea no problem if you're rooted now get titanium backup
    – user51878
    Commented Jan 28, 2014 at 17:35

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